Developing New Approaches for Main-Group Molecules and Materials in Catalysis

开发催化主族分子和材料的新方法

• 批准号: RGPIN-2018-05827
• 负责人: Caputo, Christopher
• 金额: $ 2.99万
• 依托单位: York University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=688223
• 关键词: Developing; New; Approaches; Main; Group

The renaissance in main-group chemistry has thrust a spotlight onto exploring unprecedented reactivity extracted from molecules containing boron and phosphorus. In many cases, these metal-free systems provide new and interesting ways to effect chemical transformations once only attainable by transition metal complexes. Still, drawbacks exist to current technology which makes it challenging to compete industrially with transition metal mediated processes. The overarching theme of the proposed research program is to tackle these drawbacks through the design, synthesis and characterization of new, low-cost molecules and materials derived from main-group elements. More specifically, one stream focuses on using unique molecular architecture to induce reactivity upon addition of an external stimulant to develop a Lewis acidic switch. The modular construction will allow for highly adjustable properties that will tune reactivity. Utilizing knowledge gained from the first stream, the second stream investigates the applications of these switches in tackling difficult chemical transformations, including some which are required for sustainable energy applications. Lastly, the third stream in the program targets a bottom-up approach to designing Lewis acidic materials, utilizing self assembly to integrate Lewis acidic functionalities into porous organic networks. These novel materials will be explored as recyclable materials for important chemical transformations, ones which typically consume expensive precious metals. ***The proposed research program covers a breadth of chemistry topics, encompassing inorganic, organic and materials chemistry. While fundamental in nature, it targets serious deficiencies in the current state-of-the-art technology with goals of developing viable alternatives to current metal-based processes. The production of chemicals, materials and energy is an integral component of the Canadian economy. Developing new materials, chemicals and processes are of utmost importance to the development of new, high technology products and ultimately, businesses. The development of the proposed metal-free materials will impact catalytic processes used in industry, resulting in the reduction of harmful emissions and produce desirable materials without precious metals in a greener, environmentally friendly manner. Thus, positioning Canada at the forefront of the development of these disruptive technologies for a sustainable future.

主族化学的复兴将人们的注意力集中在探索从含硼和磷的分子中提取的前所未有的反应性上。在许多情况下，这些无金属系统提供了新的和有趣的方式来实现曾经只能通过过渡金属络合物实现的化学转化。然而，现有技术存在缺点，这使得其在工业上与过渡金属介导的方法竞争具有挑战性。拟议研究计划的首要主题是通过设计，合成和表征来自主族元素的新的低成本分子和材料来解决这些缺点。更具体地，一个流集中于使用独特的分子结构来诱导在添加外部刺激物时的反应性，以产生刘易斯酸性开关。模块化结构将允许高度可调的属性，将调整反应性。利用从第一个流程中获得的知识，第二个流程研究这些开关在解决困难的化学转化中的应用，包括可持续能源应用所需的一些化学转化。最后，在该计划的第三个流的目标是自下而上的方法来设计刘易斯酸性材料，利用自组装集成刘易斯酸性功能到多孔有机网络。这些新材料将被探索作为重要化学转化的可回收材料，这些材料通常消耗昂贵的贵金属。* 拟议的研究计划涵盖广泛的化学主题，包括无机，有机和材料化学。虽然本质上是根本性的，但它针对的是目前最先进技术的严重缺陷，目标是开发目前金属工艺的可行替代品。化学品、材料和能源的生产是加拿大经济的一个组成部分。开发新材料、化学品和工艺对于开发新的高科技产品以及最终的业务至关重要。拟议的无金属材料的开发将影响工业中使用的催化工艺，从而减少有害排放，并以更绿色、环保的方式生产不含贵金属的理想材料。因此，将加拿大置于这些颠覆性技术发展的最前沿，以实现可持续的未来。